IBM 1911, Руководство по обслуживанию

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Using passwords
Use this information to set, change, or delete a power-on password.
You can set, change, and delete a power-on password and an administrator
password in the Setup utility by selecting
System Settings then System Security .
If you set a power-on password, you must type the power-on password to
complete the system startup and to have access to the Setup Utility menu.
The password must be from 6 to 20 characters. You can use any combination of
ASCII printable characters for the password. Keep a record of your password in a
secure place.
If you forget the power-on password, you can regain access to the blade server
either by removing the blade server battery and then reinstalling it or by using the
power-on password override switch (see “Removing the battery” on page 58 and
“Installing the battery” on page 60).
An administrator password is intended to be used by a system administrator; it
limits access to the full Setup utility menu.
Attention: If you set an administrator password and then forget it, there is no
way to change, override, or remove it. You must replace the system board.
Using the Boot Menu program
Use the Boot Menu program to temporarily redefine the first startup device
without changing settings in the Setup utility.
The Boot Menu program is a built-in, menu-driven configuration utility program
that you can use to temporarily redefine the first startup device without changing
settings in the Setup utility.
To use the Boot Menu program, complete the following steps:
1. Turn off the server.
2. Restart the server.
3. When the prompt
<F12> Select Boot Device
is displayed, press F12 . If a
bootable USB mass storage device is installed, a submenu item ( USB Key/Disk )
is displayed.
4.
Use the Up arrow and Down arrow keys to select an item from the Boot
Selection Menu and press Enter.
The next time the server starts, it returns to the startup sequence that is set in the
Setup utility.
Updating the Universal Unique Identifier (UUID)
The Universal Unique Identifier (UUID) must be updated when the system board
is replaced.
The Universal Unique Identifier (UUID) must be updated when the system board
is replaced. Use the Advanced Settings Utility to update the UUID in the
UEFI-based server. The ASU is an online tool that supports several operating
Chapter 3. Configuring the blade server
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